Lamp and guard handle



Jan. 29, 1929.

F. c. KoLLATH LAMP AND GUARD HANDLE Filed June 14, 1927 Patented Jan.29, 19.29. l

FRANCIS C. KOLLATE, F CHICAGO', ILLINOIS.

LAMP .AND GUARD HANDLE.

Application :filed June 14,

My invention relates to handles and sockets for portable lamps and lampguards, and especially to that. type wherein the handle is composed offlexible material such as rubber.

@ne of the objects of my invention is to provide a cooperating lockingmeans between the handle and socket so that the socket will be heldsecurely in p lace and canlO not rotate in the handle whenV the lamp isscrewed in and out and also that when the lamp guard is clamped on thehandle they socket is held against longitudinal movement..

Another object of my invention is to provide a device which is cheap tomanufacture, easy to assemble and of few parts.

Realizing that my invention may be varied in its physical embodimentwithout departing from the spirit of the invention, I desire it to beunderstood that the speclic construction and form herein shown is tobetaken as illustrative and not in a limiting sense.

In the accompanying drawingslike portions of the device are designatedby like characters throughout the several figures.

One method of accomplishing my objects is illustrated in theaccompanying drawings in which like ortions ofthe device are designatedby li e characters throughout the several figures.

Figure 1 is a side view ofthe device completely assembled.

Figure 2 is a longitudinal sectional view of the device shown in Figure1, a portion of the socket and lampbeing shown in full lines. f Figure 3is an axial section of the handle e alone showing the locking lugs.

Figure 4 is a perspective view of the` socket illustrating the lugreceiving cavities.

Referring now to the drawing in detail, the handle 1 is provided with'an enlarged portion 2 having a socket receiving chamber 3 therein, andis preferably made of resilient and comparatively soft rubber which willact as an enicient shock absorber forv the socket and lamp and whichwill stretch suJ1 5@ iciently to receive the socket and hold it securelyin place after it is inserted.

The handle 1 is provided with suiciently thick walls to alford asuitable grip for the user and has a longitudinal assage 4coinmunicating, with the cham er 3 for the electric conductors 5.

lam

1927. Serial No. 198,732.

The socket 6 is of the usualV internal construction; that is, it isprovided with the usual threaded shell and center contacts for receivingthe lampin the usual well known manner, which is no part of my inventionand need not be described here.

The chamber 3 is somewhat longer than the socket 6, in order to provideroom for the knot 7 formed in the conductors behind thel 65 socket, theconductors being fastened in the socket inthe usual manner. The knot 7seats against the annular shoulder 8 when tension is exerted on theconductors, thus preventing them from being pulled loose from thesocket.

Cavities 9 are located in andnear the front end of the socket asillustrated and are provided with inclined front and rear walls 10,L andvertical side walls 11. These cavities 75 receive the lugs 12, which areradially disposed in the handle near'the front end of the chamber 3,when the socketis inserted.

The lugs 12 are also provided with inclined front and rear walls13,which, co-

`operating with theinclined walls 10 ofthe socket, allow .it to beeasily inserted and removed. They are also provided with vertical sidewalls 14 cooperating with the walls 11 of the socket cavitiesto prevent85 effectually rotation of the socket when the is screwed in or out.

Dlrectly outside the internal lugs 12 is an annular groove 15 forreceiving the clamping ring of the lamp guard 17. This is` an ordinarysplit ring and may be clamped in place by means of the screw 18.

In the ordinary construction the socket' will turn in the handle whenthe guard and clamp are removed for inserting or removin'g the lamp. Itwill be readily seen that in my invention as illustrated and describedthe socket is securely locked rotatably when the clamp is removed, butmay be easily inserted or removed. When the ring 16 is ma clamped inplace, the lugs 12 are pressed tightly into the cavities 9 fillingthemcompletely and preventing any movement eX- cept through theresilience of the rubber handle.

rllhe socket is provided with the flange 19 which cooperates with theshoulder 2O to prevent longitudinal movement of the socket when thelampA is inserted.

It has been found in practice that this construction is very reliableand dees net` easily get out of order.

Cil

in, said depressions having vertical side Walls.

and inclined end Walls, corresponding radially disposed lugs in saidchamber and having vertical side Walls and inclined end `walls tocooperate with the Walls of said depressions, a flange adjacent theouter end of said socket and having a vertical rear Wall, a verticalshoulder adjacent the outer end of said lchamber and cooperating withthe Hange on said socket to prevent longitu dinal movement of saidsocket when' a lamp 20 is inserted.

2. Amhand lamp comprising a handle conwearer sisting of a single pieceof resilient material and having a chamber in one end for a socket, asocket in said chamber, said socket having radially disposed depressionstherein, said depressions having vertical side walls and inclined endwalls, col-'responding 1'adiall,y\disposed lugs in said chamber andhaving vertical end Walls and inclined end Walls to cooperate with thewalls of said depressions, a flange adjacent the outer end of saidsocket and havlng; a vertical rear Wall, a vertical shoulder adjacentthe outer end of said chamber and vcooperating with the Harige on saidsocket to prevent longitudinal movement of said socket When a lamp 'isinserted, and means for clamping said lugs in said depressions.

In Witness whereof, I have hereunto subscrlbed v my name.

FRANCIS C. KOLLATH.

